diff --git a/pkg/workflow/compiler_custom_actions_test.go b/pkg/workflow/compiler_custom_actions_test.go
index d2bcc253d5..403ef7ad14 100644
--- a/pkg/workflow/compiler_custom_actions_test.go
+++ b/pkg/workflow/compiler_custom_actions_test.go
@@ -399,9 +399,9 @@ Test workflow with script mode.
 		t.Error("Expected 'path: /tmp/gh-aw/actions-source' in checkout step for script mode")
 	}
 
-	// 3. Checkout should use shallow clone (depth: 1)
-	if !strings.Contains(lockStr, "depth: 1") {
-		t.Error("Expected 'depth: 1' in checkout step for script mode (shallow checkout)")
+	// 3. Checkout should use shallow clone (fetch-depth: 1)
+	if !strings.Contains(lockStr, "fetch-depth: 1") {
+		t.Error("Expected 'fetch-depth: 1' in checkout step for script mode (shallow checkout)")
 	}
 
 	// 4. Setup step should run bash script instead of using "uses:"
diff --git a/pkg/workflow/compiler_yaml_helpers.go b/pkg/workflow/compiler_yaml_helpers.go
index c90375ddc7..4223bc1d2c 100644
--- a/pkg/workflow/compiler_yaml_helpers.go
+++ b/pkg/workflow/compiler_yaml_helpers.go
@@ -135,7 +135,7 @@ func (c *Compiler) generateCheckoutActionsFolder(data *WorkflowData) []string {
 			"          sparse-checkout: |\n",
 			"            actions\n",
 			"          path: /tmp/gh-aw/actions-source\n",
-			"          depth: 1\n",
+			"          fetch-depth: 1\n",
 			"          persist-credentials: false\n",
 		}
 	}
@@ -209,7 +209,7 @@ func (c *Compiler) generateCheckoutGitHubFolder(data *WorkflowData) []string {
 		"          sparse-checkout: |\n",
 		"            .github\n",
 		"            .agents\n",
-		"          depth: 1\n",
+		"          fetch-depth: 1\n",
 		"          persist-credentials: false\n",
 	}
 }